Oxford Countdown Book 6 | Third Edition | Unit 7 | Exercise 7C | Q14-16
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Oxford new Countdown Third edition Series for Grade 6 Chapter/Unit 7
Introduction to Algebra
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Unit 7
Exercise 7C
Q14: Find the 15th term of sequence when rule is 5n-3
Q15: find the 20th term of the sequence below
I Rule 2n+5
ii. Rule 5n-1
Q16: A sequence of the pattern is made from octagon with each slide of 1 cm
i. What is the perimeter of pattern 2?
ii. Copy and complete the table.
Pattern number 1 2 3 4
Perimeter 8cm 20cm
iii. The rule of perimeter is 6n +2 find the perimeter of 25th pattern.
iv. Which pattern has perimeter of 38 cm?